3-Cyanobenzoyl chloride - Names and Identifiers
3-Cyanobenzoyl chloride - Physico-chemical Properties
Molecular Formula | C8H4ClNO
|
Molar Mass | 165.58 |
Density | 1.2744 (rough estimate) |
Melting Point | 42-44 °C (lit.) |
Boling Point | 125-129 °C/11 mmHg (lit.) |
Flash Point | >230°F |
Vapor Presure | 0.0101mmHg at 25°C |
Appearance | Crystalline Mass or Crystalline Powder and Chunks |
Color | White to pale yellow or light gray |
Storage Condition | under inert gas (nitrogen or Argon) at 2-8°C |
Refractive Index | 1.5430 (estimate) |
3-Cyanobenzoyl chloride - Risk and Safety
Hazard Symbols | C - Corrosive
|
Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed.
R34 - Causes burns
R20/21/22/34 -
|
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S27 - Take off immediately all contaminated clothing.
S28 - After contact with skin, wash immediately with plenty of soap-suds.
S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection.
S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S26/36/37/39/45 -
|
UN IDs | UN 3261 8/PG 2 |
WGK Germany | 3 |
HS Code | 29269090 |
Hazard Class | 8 |
Packing Group | III |
3-Cyanobenzoyl chloride - Introduction
3-cyanobenzoyl chloride, chemical formula C6H4ClNO, is an organic compound. The following is a description of its nature, use, formulation and safety information:
Nature:
-Appearance: 3-cyanobenzoyl chloride is a colorless to pale yellow liquid.
-Melting point: About -15 ° C.
-Boiling point: About 236 ° C.
-Density: about 1.306g/cm³.
-Solubility: It is soluble in most organic solvents, such as alcohols, ethers and chlorinated hydrocarbons.
Use:
- 3-cyanobenzoyl chloride is mainly used in the field of organic synthesis and is often used as a reagent, such as a cyanide reagent for aromatic aldehydes.
-It can also be used to prepare pesticides, dyes and pharmaceutical intermediates.
Method:
A common preparation method is as follows:
-Benzoic acid is reacted with sodium cyanide under acidic conditions to obtain benzoyl cyanide.
-Then, benzoyl cyanide is reacted with thionyl chloride to obtain 3-cyanobenzoyl chloride.
Safety Information:
- 3-cyanobenzoyl chloride is irritating and should be operated with gloves and eye protection.
-It is a dangerous corrosive agent that can cause serious burns to the skin and eyes.
-Avoid inhaling its vapor and maintain good ventilation conditions when using it.
-Store it in a cool, dry and sealed container, away from fire and oxidizing agents.
Please note that the use of chemical reagents needs to strictly follow the laboratory's safe operating procedures, and operate after understanding its nature and use requirements.
Last Update:2024-04-09 15:17:53